You might notice that these real engineering jobs also don't have a way to verify the product via tests like that though, which was my point.

And that's ignoring that your statement technically isn't even true, because the engineers actually working in such fields are very few (i.e. designing bridges, airplanes etc).

The majority of them design products where safety isn't nearly as high stakes as that... And they frequently do overspec (wasting money) or underspec (increasing wastage) to boot.

This point has been severely overstated on HN, honestly.

Sorry, but had to get that off my chest.